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Vacuum Tubes

The first electronic amplification of sound was done with Vacuum Tubes. We have pre-amp, power and rectifier vacuum tubes among other types in New Old Stock from the golden era of American & European manufacturing as well as current production tubes from today.

Genalex - Genalex Gold Lion tubes are made in the Reflektor factory in Saratov, Russia.
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T-EL84-GENVacuum Tube - EL84 / N709, Genalex Gold Lion

Super Premium power pentode, highest quality in current production. Perfect for Vox AC30, from soft overdrive and organic sustain to great harmonic crunch. Used in many vintage HiFi applications.



  • Unique single halo type getter & plate coating
  • N709/6BQ5 equivalent

$26.45
Starting at $23.81
You save: 10%
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T-6V6GT-GENVacuum Tube - 6V6GT / CV-511, Genalex Gold Lion

Genalex Gold Lion 6V6GT / CV511 beam-power tube. Made in Russia.


$32.75
Starting at $29.48
You save: 10%
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T-KT66-GENVacuum Tube - KT66, Genalex Gold Lion
Super Premium power beam tetrode & exact copy of the original clear glass KT66, used in the early Marshall amps which created Eric Clapton’s "Bluesbreaker" Tone.” Full sound with improved bass response and shimmering top-end.

  • Originally a British equivalent to 6L6 and a mainstay of the British hi-fi industry
  • Used in 50s - 60s hi-fi favorites such as the Heath W-5M and many Leak amplifiers
$41.95
Starting at $37.76
You save: 10%
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T-KT77-GENVacuum Tube - KT77, Genalex Gold Lion
Genalex Gold Lion KT77 beam-power tetrode tube. Made in Russia.
A beam tetrode with an absolute maximum anode dissipation rating of 32 watts. The KT77 is designed for use in the output stage of an af amplifier. Two valves in Class AB1 give a continuous output of over 70 W.
$50.95
Starting at $45.86
You save: 10%
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T-KT88-GENVacuum Tube - KT88, Genalex Gold Lion
KT88 power tube reissue of Genalex Gold Lion. Made in Russia.
In 1957 Marconi-Osram Valve Co. (Genalex) introduced the "King of Power Tubes", the legendary Gold Lion KT88. This tube became the heart and soul of such classics as the Dynaco Mark III, McIntosh MC275, and Marshall Major. Unfortunately, Genalex ceased tube production in the early 1980s and the Genalex Gold Lion KT88 has become very expensive and hard to find.
After extensive research and engineering, New Sensor Corp. has reissued the famed Genalex Gold Lion KT88.
$58.50
Starting at $52.65
You save: 10%
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T-PX300B-GOLD-GENVacuum Tube - PX300B, Genalex Gold Lion, Gold Pin

Genalex Gold Lion PX300B power triode tube with gold pins. Made in Russia. In Europe during the 1930s the GEC (Genalex)/Marconi-Osram PX4 and PX25 power triodes were considered the finest audio triodes of their day. In keeping with the tradition of Genalex to provide the highest quality tubes, New Sensor has released the Genalex Gold Lion PX300B audio power triode. This tube is the highest quality 300B type available and is considered to be an upgrade in any 300B amplifier.


$143.95
Starting at $129.56
You save: 10%
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